250 AMP Dual Battery Smart Isolator, 12V/24V, Universal VSR Voltage Sensitive Relay Battery Isolator Intelligent with LCD Screen, for Car Truck ATV RV Battery Starter Controller Power Switch 12V/24V Intelligent Adaptation Dual LED Display Multiple Protection Stress-Free Installation Excellent Material Easy Operation Main Battery Charging Voltage: ≥12.8V,Maximum Charging Current: 250A,Item Dimensions (L x W x H): 5.9 x 5.4 x 1.8 in / 150 x 137 x 46 mm,Applicable Battery Voltage System: 12V/24V Storage Battery,Item Model Number: OT029,Product Weight (with all accessories): 1.7 lb / 0.77 kg,Main Material: Aluminum Alloy